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If (X + 2) is a factor of x2 + mx + 14 , then find the value of m.

Posted by Janhavi Singh 4 years, 2 months ago

CBSE > Class 09 > Mathematics

3 answers

Sumedh Joshi 4 years, 2 months ago

x+2=0 x=-2 -2*2+(-2)*m+14=0 -4-2m+14=0 -4+14-2m=0 10-2m=0 -2m=-10 m=-10/-2 m=10/2 m=5

1Thank You

Harshwardhan Singh 4 years, 2 months ago

No it is not write ✍️answer

0Thank You

Yogita Ingle 4 years, 2 months ago

If (X + 2) is a factor of x2 + mx + 14

Put x = -2

x2 + mx + 14 = 0
(-2)2 + m(-2) + 14 = 0
4 - 2m + 14 = 0

-2m + 18 =0
-2m = -18
m = 18/2 = 9

3Thank You

ANSWER

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CBSE > Class 09 > Mathematics